<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>组件-全局注册</title>
</head>

<body>
    <div id="app">
        <button-counter></button-counter>
        <button-counter></button-counter>
        <button-counter></button-counter>
    </div>

    <script type="text/javascript" src="js/vue.js"></script>
    <script type="text/javascript">
        /*
        注册全局组件
        */
        /**
        组件参数的data值必须是函数同时这个函数要求返回一个对象 
        组件模板必须是单个根元素
        组件模板的内容可以是模板字符串
        */
        Vue.component('button-counter', {
            data: function () {
                return {
                    count: 0
                }
            },
            template: '<button @click="handle">点击了{{count}}次</button>',
            methods: {
                handle: function () {
                    this.count += 2;
                }
            }
        });
        var vm = new Vue({
            el: '#app',
            data: {

            },

        });
    </script>
</body>

</html>